Ericsson RBS 2206 - Page 115

Product Data RBS 2206
Fuses
The +24 V DC cables must be protected with an approved circuit
breaker/fuse.
Table 57 +24 V DC fuses recommendation
Minimum for Safe
Function
Maximum Allowed Fuse Rating
175 A 200 A
+24 V DC Cables
The +24 V DC supply is connected to the DC filter by a pair of
95 - 150 mm
2
cables, one for + and one for -.
6.3.3 -(48 - 60) V DC Power Supply
DC Power Requirements -(48 - 60) V
Table 58 DC power requirements
Nominal
-48/-60 V DC
Range
-(40.0 - 72.0) V DC
Non-destructive range
+0 - (-80) V DC
Inrush current, typical 200 A (0.1 - 0.5 ms)
Fuses
Table 59 -(48 - 60) V fuses recommendation
Fuse Rating for -60 V DC Fuse Rating for -48 V DC
32 A 40 A
-(48 - 60) V DC Cables
There are four power cables for the cabinet, one pair for each Power
Supply Unit. They are connected to the DCCU main switch with screw
terminals. The cables must be connected via an approved circuit
breaker/fuse for each cable.
The conductor area can be 6 – 10 mm
2
and cable diameter can be
4.5 – 7 mm.
EN/LZT 720 0008 P2A
2001-11-28
113 (485)
© Ericsson Radio Systems AB
— All Rights Reserved —
Preliminary